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Vapour pressure

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Reference
Endpoint:
vapour pressure
Type of information:
experimental study
Adequacy of study:
key study
Study period:
2018
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Qualifier:
according to
Guideline:
EU Method A.4 (Vapour Pressure)
GLP compliance:
yes
Type of method:
static method
Key result
Test no.:
#1
Temp.:
ca. 20 °C
Vapour pressure:
ca. 16.5 Pa

Full results table:

Temp / °C

Temp / K

P / mbar

**P / Pa

Run 1

*20

293.15

0.19

19

19.9

293.05

0.1811

18.11

30.1

303.25

0.5195

51.95

40.0

313.15

1.2

120

Run 2

*20

293.15

0.14

14

19.7

292.85

0.1273

12.73

24.9

298.05

0.2171

21.71

30.0

303.15

0.467

46.7

35.7

308.85

0.7152

71.52

40.0

313.15

1.0

100

* - Determined by extrapolation/interpolation

** - Calculated

Result : 16.5 Pa at 20°C (mean of runs 1 & 2)

Conclusions:
The average vapour pressure obtained for the 1,1"-isopropylidenediferrocene was determined to be 16.5 Pa @ 20°C.
Executive summary:

The vapour Pressure of 1,1"-isopropylidenediferrocene was determined by the Static method, conducted in accordance with the procedure described in EU Regulation (EC) 440/2008, Annex Part A test A4.

Average vapour pressure from 2 runs was found to be 16.5 Pa at 20 degrees C.

Description of key information

The vapour pressure of 1,1"-isopropylidenediferrocene was determined using the static method. The test was conducted in accordance with the procedure described in EU Regulation (EC) 440/2008, Annex Part A test A4 and assigned a reliability score of 1 in accordance with the criteria for assessing data quality set forth by Klimisch et al (1997).

The average vapour pressure obtained for the 1,1"-isopropylidenediferrocene was determined to be 16.5 Pa @ 20°C.

Key value for chemical safety assessment

Vapour pressure:
16.5 Pa
at the temperature of:
20 °C

Additional information

The vapour pressure for 1,1"-isopropylidenediferrocene was determined to be 16.5 Pa @ 20°C (mean result of 2 runs).